Subtract 75/40 from 70/72
1st number: 70/72, 2nd number: 1 35/40
70/72 - 75/40 is -65/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
70/72 = 70 × 5/72 × 5 = 350/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
75/40 = 75 × 9/40 × 9 = 675/360 - Subtract the two like fractions:
350/360 - 675/360 = 350 - 675/360 = -325/360 - After reducing the fraction, the answer is -65/72
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